The Lead

4K video is barging its way into mobile devices regardless if their owners have any use for it. Acer has already claimed to be the first with a 4K-ready smartphone when it announced its Liquid S2 6-inch phablet. The much more anticipated Samsung Galaxy Note 3 followed with a 4K sensor but it can’t actually play back the 4K videos at full-size. But that’s just one of the early limitations in the new mobile 4K world.

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It’s too early to break out the nails for NFC’s coffin. There are still plenty of uses for the technology. But NFC’s mobile payments aspirations look like they’ve suffered a death blow at the hands of Apple’s iBeacon, Bluetooth LE and PayPal.